refactor(docker): improve postgres container initialization script

The command for the postgres service was restructured to:
1. Use more readable multi-line formatting
2. Replace the find -exec with a more efficient for loop
3. Maintain the same functionality while improving maintainability

docker-compose.yml

@@ -108,14 +108,20 @@ services:
         source: ./pg_backups
         target: /docker-entrypoint-initdb.d/pg_backups
     command: >
-      bash -c ' if command -v apt-get >/dev/null 2>&1; then
-        apt-get update && apt-get install -y dos2unix
-      elif command -v apk >/dev/null 2>&1; then
-        apk add --no-cache dos2unix
-      fi && find /docker-entrypoint-initdb.d -type f -name "*.sh" -exec sh -c '\''
-        dos2unix "{}" 2>/dev/null || true
-        chmod +x "{}"
-      '\'' \; && exec docker-entrypoint.sh postgres '
+        bash -c '
+          if command -v apt-get >/dev/null 2>&1; then
+            apt-get update && apt-get install -y dos2unix
+          elif command -v apk >/dev/null 2>&1; then
+            apk add --no-cache dos2unix
+          fi
+          find /docker-entrypoint-initdb.d -type f -name "*.sh" -exec sh -c "
+            for f; do
+              dos2unix \"\$f\" 2>/dev/null || true
+              chmod +x \"\$f\"
+            done
+          " sh {} +
+          exec docker-entrypoint.sh postgres
+        '
   db-backup:
     image: postgres:15
     container_name: worklenz_db_backup